Re: Abysmal interactive performance on 2.4.linus

From: mike@morpheus
Date: Mon Nov 12 2001 - 17:22:38 EST


I have tried both 2.4.13ac6 and 2.4.15-pre2, and am getting
the same behaviour in 2.4.15-pre2, but not in the ac kernel.

mike

--

My Operat~1 System supports long filena~1, does yours?

On Mon, 12 Nov 2001, Jeff Garzik wrote:

> Frank de Lange wrote: > > > > On a 768 MB SMP box (2x466 MHz Celeron), I see some weird problems with > > interactive performance on 2.4.15pre{1,2}. A good example of this is the > > following scenario: > > > > - copy a large file (eg. an iso image file) to a directory on the same > > (reiserfs in this case) filesystem, or... > > - do a filesystem comparison between a CD and the original file (with cmp > > /mnt/cdrom/<filename> /mnt/reiserfs/1/data/<original_file_location>, using a > > PLEXTOR Model: CD-ROM PX-40TS SCSI CD-ROM drive), > > > > - and THEN (while the copy or comparison runs) try any simple command (like > > 'ls /mnt/reiserfs/1/data' or 'top' or anything else...). > > > > Response time is abysmal, a simple 'ls /some/dir' takes tens of seconds to > > start. Once the command is running, performance is normal. Try this when a > > cdrecord session is running and you'll get a buffer underrun. > > Can you try 2.4.13ac6 (not 7/8), and 2.2.20, and post a comparison? > > -- > Jeff Garzik | Only so many songs can be sung > Building 1024 | with two lips, two lungs, and one tongue. > MandrakeSoft | - nomeansno > > - > To unsubscribe from this list: send the line "unsubscribe linux-kernel" in > the body of a message to majordomo@vger.kernel.org > More majordomo info at http://vger.kernel.org/majordomo-info.html > Please read the FAQ at http://www.tux.org/lkml/ >

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